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Mathematics Word Problems Q&A Practice Quiz Solve a word problem and explore related facts.
tractors were moved to another field, then the remaining 4 tractors could plow the same field in 5 days. How many hectares a day would one tractor plow then? Answer: 144 hectares a day. 10.A student chose a number, multiplied it by 2, then subtracted 138 from the result and got 102. What was the number he chose? Answer: 120 11.I chose a number and divide it by 5. Then I subtracted 154 from the result and got 6. What was the number I chose? Answer: 800 12.The distance between the two towns is 380 km. At the same moment, a passenger car and a truck start moving toward each other from different towns. They meet 4 hours later. If the car drives 5 km/hr faster than the truck, what are their speeds? Answer: the truck's speed is 45 km/hr, and the car's speed is 50 km/hr. 13.One side of a rectangle is 3 cm shorter than the other side. If we increase the length of each side by 1 cm, then the area of the rectangle will increase by 18 cm 2
. Find the lengths of all sides. Answer: the sides of the rectangle are 10 cm and (10 - 3) = 7 cm long. 14.In the first year, two cows produced 8100 liters of milk. In the second year, their production increased by 15% and 10% respectively, and the total amount of milk increased to 9100 liters a year. How many liters were milked from each cow each year? Answer: The cows produced 3800 and 4300 liters of milk in the first year, and 4370 and 4730 liters of milk in the second year, respectively. 15.Susan drives from city A to city B. After two hours of driving she noticed that she covered 80 km and calculated that, if she continued driving at the same speed, she would end up being 15 minutes late. So she increased her speed by 10 km/hr and she arrived at city B 36 minutes earlier than she planned. Find the distance between cities A and B. Answer: 250 km